EP4059628A1 - Machine à étirer à cylindre à double emporte-pièce bidirectionnelle équilibrée à grande vitesse - Google Patents

Machine à étirer à cylindre à double emporte-pièce bidirectionnelle équilibrée à grande vitesse Download PDF

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Publication number
EP4059628A1
EP4059628A1 EP20888471.8A EP20888471A EP4059628A1 EP 4059628 A1 EP4059628 A1 EP 4059628A1 EP 20888471 A EP20888471 A EP 20888471A EP 4059628 A1 EP4059628 A1 EP 4059628A1
Authority
EP
European Patent Office
Prior art keywords
blank pressing
crank
punch
crankshaft
pressing cam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20888471.8A
Other languages
German (de)
English (en)
Other versions
EP4059628A4 (fr
Inventor
Shu An
Lingguang Kong
Yang Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou SLAC Precision Equipment Co Ltd
Original Assignee
Suzhou SLAC Precision Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou SLAC Precision Equipment Co Ltd filed Critical Suzhou SLAC Precision Equipment Co Ltd
Publication of EP4059628A1 publication Critical patent/EP4059628A1/fr
Publication of EP4059628A4 publication Critical patent/EP4059628A4/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2669—Transforming the shape of formed can bodies; Forming can bodies from flattened tubular blanks; Flattening can bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/22—Deep-drawing with devices for holding the edge of the blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/28—Deep-drawing of cylindrical articles using consecutive dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/06—Deforming sheet metal, tubes or profiles by sequential impacts, e.g. hammering, beating, peen forming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B30B1/261—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks by cams

Definitions

  • the present invention relates to a can body making machine, in particular to a bi-directional and double-punch bodymaker with better balance of process force and torque under high-speed working conditions (drawing speed of 400 times/min).
  • the so-called can body refers to the metal components with the shape of a can body, such as the can body of a ring-pull can, the can body of a battery case and other metal objects with the shape of a can body.
  • Metal can bodies are widely used in people's daily lives and industries.
  • the typical can bodies are the can bodies of ring-pull cans and cases of the lithium battery in the power battery.
  • the annual use of these can bodies is very huge, especially the can bodies of ring-pull cans.
  • Ring-pull cans are usually made of aluminum and iron. Its structure is composed of a can body and easy open end. And the can body is formed by drawing metal sheets through a bodymaker.
  • the existing bodymaker is usually composed of a cup feeding mechanism, a blank pressing mechanism, a punch driving mechanism, a drawing die and a can discharging mechanism.
  • the cup feeding mechanism is used to transport the can blank before drawing (cup-shaped member to be drawn)
  • the blank pressing mechanism is used to compress the can blank during drawing
  • the punch driving mechanism is used to provide the punching stroke during can drawing
  • the drawing die is used to draw the can body
  • the can discharging mechanism is used to discharge and output the can body after drawing.
  • the bodymaker For the bodymaker, its technical core lies in the design and layout of punch driving mechanism and blank pressing mechanism. With the technology improvement and market demand, the bodymaker is developing in the direction of high speed and high quality. It is required to continuously improve the drawing speed (drawing speed of 400 times/min), while it is also required to complete the drawing forming of the can body with high quality. This puts forward very high requirements for the balance of process force and torque of bodymaker in its own idle stroke. Therefore, how to maintain the balance of process force and torque of the bodymaker under the condition of high-speed operation is a technical problem in the art.
  • Chinese patent CN102581107A discloses a utility patent with the title of a bi-directional and double-punch bodymaker and with application No. 201210040629 .
  • the patent designs two sets of punch driving mechanisms which are arranged in a symmetrical layout to share a crankshaft to balance the process force and torque of swing lever, slider, punch and other components in motion and the reacting force generated in the process of can body forming, which significantly reduces the load of crankshaft support bearing, reduces the requirements for bearing design and processing and prolongs the service life.
  • the patent has achieved obvious results in reducing process force and torque through the symmetrical layout of two sets of punch mechanisms, it still has the following problems: first, the structure is complicated and there are many moving parts.
  • the patent scheme has two sets of punch driving mechanisms and each set of punch driving mechanism is composed of crankshaft, main connecting rod, swing lever, secondary connecting rod, guide rail, slider and punch, and the swing lever can enlarge the punching stroke and reduce the radius of crank at the same time; and the secondary connecting rod can reduce the pressure angle between the slider and the guide rail, which is conducive to the accuracy and stability of the sliding mechanism.
  • the existence of the swing lever and the secondary connecting rod also makes the overall size of the equipment larger, makes the mechanism more complicated, and increases the number of moving parts. Second, there are still deficiencies in the overall layout and stress of the machine.
  • the invention provides a bi-directional and double-punch balanced high-speed bodymaker, which aims to solve the problems of complicated structure and poor balance of process force and torque of the existing bi-directional and double-punch bodymaker.
  • the technical scheme adopted by the invention is: a bi-directional and double-punch balanced high-speed bodymaker, which comprises a punch driving mechanism and a blank pressing mechanism, wherein: the punch driving mechanism is composed of the following components: A crankshaft, said crankshaft is rotationally supported by a bearing, and the crankshaft is provided with a first crank, a second crank, a first blank pressing cam and a second blank pressing cam.
  • Two connecting rods i.e. the first connecting rod and the second connecting rod.
  • Two slide rails i.e. the first slide rail and the second slide rail.
  • Two sliders i.e. the first slider and the second slider.
  • Two punches i.e. the first punch and the second punch.
  • the first crank is rotationally connected with the one end of the first connecting rod, and the other end of the first connecting rod is rotationally connected with the first slider, and the first slider is mounted on the first slide rail and slidably connected with the first slide rail, and the first slide rail is fixed relative to the base of the bodymaker, and the first slider is fixedly connected with the first punch.
  • the second crank is rotationally connected with one end of the second connecting rod, and the other end of the second connecting rod is rotationally connected with the second slider, and the second slider is mounted on the second slide rail and slidably connected with the second slide rail, and the second slide rail is fixed relative to the base of the bodymaker, and the second slider is fixedly connected with the second punch.
  • the first crank, the first connecting rod, the first slider, the first slide rail, the first punch and the first blank pressing cam are located at one end of the crankshaft and form a first punch driving mechanism;
  • the second crank, the second connecting rod, the second slider, the second slide rail, the second punch and the second blank pressing cam are located at the other end of the crankshaft and form a second punch driving mechanism.
  • the blank pressing mechanism is composed of a first blank pressing mechanism and a second blank pressing mechanism, wherein the first blank pressing mechanism is arranged corresponding to the first punch driving mechanism, the first blank pressing cam is drivingly connected with the first blank pressing mechanism and has a first driving point, the second blank pressing mechanism is arranged corresponding to the second punch driving mechanism, and the second blank pressing cam is drivingly connected with the second blank pressing mechanism and has a second driving point.
  • the first punch driving mechanism and the second punch driving mechanism are symmetrically arranged with the rotation center point of the crankshaft as the reference, so as to maintain the balance of overall stress on the plane transverse to the crankshaft axis during the operation of the bodymaker.
  • the drawing force applied by the first connecting rod to the first crank is defined as the first drawing force
  • the drawing force applied by the second connecting rod to the second crank is defined as the second drawing force
  • the blank pressing force applied by the first blank pressing mechanism to the first blank pressing cam is defined as the first blank pressing force
  • the blank pressing force applied by the second blank pressing mechanism to the second blank pressing cam is defined as the second blank pressing force
  • the first drawing force and the second drawing force are parallel and opposite to each other and form a first torque
  • the first blank pressing force and the second blank pressing force are parallel and opposite to each other and form a second torque
  • the design principle and conception of the invention are: in order to solve the problems of complicated structure and poor balance of process force and torque of the existing bi-directional and double-punch bodymaker, the invention has made the following two improvements and breakthroughs in the structural design of the bodymaker.
  • the first blank pressing cam is designed for the first crank and the second blank pressing cam is designed for the second crank.
  • the blank pressing force of the first blank pressing mechanism acting on the first blank pressing cam and the blank pressing force of the second blank pressing mechanism acting on the second blank pressing cam are designed to be parallel to each other and in opposite directions.
  • the present invention has the following advantages and effect in comparison with the existing bi-directional and double-punch bodymaker:
  • the bodymaker is composed of a box body, two sets of dies, two sets of blank pressing mechanisms, two sets of cup feeding mechanisms, two sets of punch driving mechanisms and two sets of can discharging mechanisms, and since the innovation of the present invention is embodied in the punch driving mechanisms and blank pressing mechanisms, and the existing technology can be adopted for the other mechanisms, so there is no detailed description and introduction of them in the embodiment, which can be understood and accepted by those skilled in the art.
  • the punch driving mechanism is composed of the following components: A crankshaft 1 (see Fig. 2 and 4 ), and the crankshaft 1 is rotationally supported by a bearing, and the crankshaft 1 is provided with a first crank 11, a second crank 12 , a first blank pressing cam 13 and a second blank pressing cam 14.
  • the first crank 11 and the second crank 12 are arranged adjacently in the axial direction of the crankshaft 1, the first blank pressing cam 13 is arranged outside the axial direction of the first crank 11, and the second blank pressing cam 14 is arranged outside the axial direction of the second crank 12 (see Fig. 2 ).
  • Two identical connecting rods i.e. the first connecting rod 21 and the second connecting rod 22 (see Fig. 1 and 3 ).
  • Two identical slide rails i.e. the first slide rail 31 and the second slide rail 32 (see Fig. 1 ).
  • Two identical sliders i.e. the first slider 41 and the second slider 42 (see Fig. 1 and 3 ).
  • the first crank 11 is rotationally connected with the one end of the first connecting rod 21, and the other end of the first connecting rod 21 is rotationally connected with the first slider 41, and the first slider 41 is mounted on the first slide rail 31 and slidably connected relative to the first slide rail 31, and the first slide rail 31 is fixed relative to the base of the bodymaker, and the first slider 41 is fixedly connected with the first punch 51 (see Fig. 1 and 3 ).
  • the second crank 12 is rotationally connected with one end of the second connecting rod 22, and the other end of the second connecting rod 22 is rotationally connected with the second slider 42, and the second slider 42 is mounted on the second slide rail 32 and slidably connected relative to the second slide rail 32, and the second slide rail 32 is fixed relative to the base of the bodymaker, and the second slider 42 is fixedly connected with the second punch 52 (see Fig. 1 and 3 ).
  • the first crank 11, the first connecting rod 21, the first slider 41 , the first slide rail 31, the first punch 51 and the first blank pressing cam 13 are located at one end of the crankshaft 1 and form a first punch driving mechanism (see Fig. 1 and 3 ).
  • the second crank 12, the second connecting rod 22, the second slider 42, the second slide rail 32, the second punch 52 and the second blank pressing cam 14 are located at the other end of the crankshaft 1 and form a second punch driving mechanism (see Fig. 1 and 3 ).
  • the blank pressing mechanism is composed of a first blank pressing mechanism and a second blank pressing mechanism, wherein the first blank pressing mechanism is arranged corresponding to the first punch driving mechanism, the first blank pressing cam 13 is drivingly connected with the first blank pressing mechanism and has a first driving point, the second blank pressing mechanism is arranged corresponding to the second punch driving mechanism, and the second blank pressing cam 14 is drivingly connected with the second blank pressing mechanism and has a second driving point.
  • the specific structures of the first blank pressing mechanism and the second blank pressing mechanism are not important, the prior art can be adopted without affecting the implementation and effect of the present invention, as long as the first blank pressing cam 13 can drive the first blank pressing mechanism to compress the edge of the can blank before the can body is drawn.
  • the first punch driving mechanism and the second punch driving mechanism are symmetrically arranged with the rotation center point of the crankshaft as the reference, so as to maintain the balance of overall stress on the plane transverse to the axis of crankshaft 1 during the operation of the bodymaker (see Fig. 1 ).
  • the drawing force applied by the first connecting rod 21 to the first crank 11 is defined as the first drawing force F1
  • the drawing force applied by the second connecting rod 22 to the second crank 12 is defined as the second drawing force F2
  • the blank pressing force applied by the first blank pressing mechanism to the first blank pressing cam 13 is defined as the first blank pressing force F3
  • the blank pressing force applied by the second blank pressing mechanism to the second blank pressing cam 14 is defined as the second blank pressing force F4; on the plane passing the crankshaft 1 axis, the first drawing force F1 and the second drawing force F2 are parallel and opposite to each

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP20888471.8A 2019-11-11 2020-03-31 Machine à étirer à cylindre à double emporte-pièce bidirectionnelle équilibrée à grande vitesse Pending EP4059628A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911092484.6A CN110877069B (zh) 2019-11-11 2019-11-11 高速平衡双向双冲罐体拉伸机
PCT/CN2020/082559 WO2021093254A1 (fr) 2019-11-11 2020-03-31 Machine à étirer à cylindre à double emporte-pièce bidirectionnelle équilibrée à grande vitesse

Publications (2)

Publication Number Publication Date
EP4059628A1 true EP4059628A1 (fr) 2022-09-21
EP4059628A4 EP4059628A4 (fr) 2023-11-29

Family

ID=69729189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20888471.8A Pending EP4059628A4 (fr) 2019-11-11 2020-03-31 Machine à étirer à cylindre à double emporte-pièce bidirectionnelle équilibrée à grande vitesse

Country Status (5)

Country Link
US (1) US20220395888A1 (fr)
EP (1) EP4059628A4 (fr)
KR (1) KR102736697B1 (fr)
CN (1) CN110877069B (fr)
WO (1) WO2021093254A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110877069B (zh) * 2019-11-11 2020-12-11 苏州斯莱克精密设备股份有限公司 高速平衡双向双冲罐体拉伸机
CN111922193B (zh) * 2020-08-19 2022-12-23 台州市鼎棒模具有限公司 一种冲孔落料模具
CN112145643B (zh) * 2020-08-31 2025-08-12 广东泰吉鑫机械有限公司 双连杆机构
CN114603030B (zh) * 2022-03-04 2024-03-12 苏州斯莱克精密设备股份有限公司 高速罐体拉伸成型设备的联动式拉伸机构
CN116897697A (zh) * 2023-05-29 2023-10-20 中国农业大学 一种林果双枝干自激振系统及对振采摘方法

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KR100458711B1 (ko) * 2002-06-04 2004-12-03 주식회사 심팩 2단 크랭크축을 갖는 크랭크 프레스
US7434442B2 (en) * 2006-08-16 2008-10-14 Werth Advanced Packaging Innovations, Ltd. Container bodymaker
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CN104998946A (zh) * 2015-08-14 2015-10-28 南通茂溢机床有限公司 一种开式可倾压力机
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CN110877069B (zh) * 2019-11-11 2020-12-11 苏州斯莱克精密设备股份有限公司 高速平衡双向双冲罐体拉伸机

Also Published As

Publication number Publication date
BR112022008970A2 (pt) 2022-08-02
WO2021093254A1 (fr) 2021-05-20
EP4059628A4 (fr) 2023-11-29
CN110877069A (zh) 2020-03-13
KR20220116155A (ko) 2022-08-22
KR102736697B1 (ko) 2024-12-02
CN110877069B (zh) 2020-12-11
US20220395888A1 (en) 2022-12-15

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